Genetic drift and directional selection will eventually result in fixation of allele.

TLS Online TPP Program

#Id: 4694

#XL - T Zoology

An individual carrying the allele can pass copies of it to his or her own children. This is the allele’s direct fitness. The allele can also pass extra copies of itself to the next generation as the result of the increased fitness of relatives that benefit from the altruistic individual’s actions. This is the allele’s indirect fitness. 

TLS Online TPP Program

#Id: 9089

#XL - T Zoology

ADP-ribosylation blocks the GTPase activity of Gαs and renders Gαs permanently active. 

TLS Online TPP Program

#Id: 10051

#XL - T Zoology

The force accompanying the movement of Delta into the signaling cell stretches the Notch protein on the responding cell and allowing access by ADAM 10, which cleaves the Notch extracellular domain

TLS Online TPP Program

#Id: 7888

#XL - Q Biochemistry

In other cells, mitochondria remain fixed at points of high energy demand.

TLS Online TPP Program

#Id: 8206

#XL - Q Biochemistry

Plant vacuole act as

a storage organelle for nutrients and waste products

a degradative compartment

an economical way of increasing cell size

a controller of turgor pressure